Automatic controlling-valve.



E. K. MOKINLEY. AUTOMATIC CONTROLLING VALVE.

APPLICATION FILED APR. 3, 1913.

Patented Oct. 14; 1913.

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EDWARD K. MCKINLEY, OF JEFFERSDN CITY, MISSOURI, ASSIGNOR OF ONE-HALF TO LUCIEN E. PIPPENGER, OF JEFFERSON CITY, MISSOURI.

AUTOMATIC CONTROLLING-VALVE.

Application filed. April 3, 1913.

To all whom it may concern:

Be it known that I, EDWARD K. MCKIN- LEY, a citizen of the United States, residing at Jefferson City, in the county of Gole and State of Missouri, have invented certain new and useful Improvements in Automatic Controlling-Valves, of which the following is a specification.

This invention relates to an automatic controlling valve adapted to control the speed of a spring or weight motor driven pump when attached to the discharge pipe of said pump. Springs and weights provide means for exerting a power which can be utilized entirely without expense and it has long been desirable to provide motors of this type for driving pumps for supplying residences or railroad water tanks or for driving the pumps in mines or for driving pumps used for farm and irrigation purposes. One of the principal objections to the use of motors of this type for pumping purposes has been that spring motors exert more power when freshly wound than when they have nearly run down. An automatic controlling valve for pumping motors of this type is shown in the patent to R. M. Haley, No. 860,914, patented July 23, 1907 and it is particularly the object of the present invention to provide a struc ture of this type possessing certain advantages and improvements over the structure shown in the aforesaid patent.

Motors of the type set forth that can be wound up in a few minutes will throw a continuous stream of water for twelve consecutive hours and if eflicient means are provided for compensating for the variable nature of the power output, it is apparent that these motors possess great utility for the purposes above set forth.

In the accompanying drawing, Figure 1 is a side elevation of a controlling valve constructed in accordance with the invention, Fig. 2 is a horizontal sectional view therethrough, and Fig. 3 is a transverse sectional view upon line X-X of Fig. 2.

Like numerals designate corresponding parts in all of the figures of the drawing.

Referring to the drawing, the numeral 5 designates a tubular sleeve having a threaded head 6 to adapt it for ready attachment to the discharge pipe of the pump, not shown. The sleeve 5 is slidably disposed within a tubular casing 7 having a closed Specification of Letters Fatent.

Patented Oct. 14, 1913.

Serial No. 758,697.

end 8. The sleeve 5 and easing 7 have registering ports 9 and 10, respectively, formed therein. A continuation of the discharge pipe is formed by a pipe 11 into which the port 10 discharges.

Brackets 12 are carried by the head 6 and have threaded rods 13 passing through them upon which nuts 14 are screwed. These rods carry cup-like heads 15 which receive one end of the springs 16. The opposite ends of these springs are secured in corresponding cup-like heads 17 carried by threaded rods 18. These latter rods pass through brackets 19 that are fixed upon casing 7.

Thumb nuts 20 are threaded upon rods 18 and serve to adjust the tension of the springs to thereby vary the degree of pressure which will cause sliding movement of casing 7 upon sleeve 5 as hereinafter set forth.

To prevent turning of the casing 7 upon sleeve 5, a rib or key 21 is provided upon sleeve 5 which engages in a groove or keyway 22 of easing 7. A stop 23 limits the inward movement of the casing 7 so that the ports 9 and 10 aline with each other when the inner end of the casing abuts said stop.

In operation, the water from the discharge pipe passes through head 6 and sleeve 5 and through ports 9 and 10 to discharge pipe 11. When the motor is freshly wound, however. it tends to move at such a speed as to create such pressure upon head 8 as will cause the casing 7 to slide outwardly with relation to sleeve 5 and against. the tension of springs 16. This tends to move port 10 out of alinement with port 9 as in Fig. 1 and consequently, the passage of water from the interior of sleeve 5 to the interior of pipe 11 is impeded and such back pressure is put upon the pump as will cause an increased load upon the motor to thereby reduce its speed. As the motor runs down, the pressure upon head 8 will begin to decrease, whereupon, the spring 16 will act to move casing 7 inwardly with relation to sleeve 5 and thereby restore the alinement between ports 9 and 10 and permit a freer passage of the water through said ports. This will, in turn, decrease the back pressure upon the pump and will permit the pump to run at the same rate of speed despite the reduced power of the motor.

While weight motors are not subject to the same wide variation in speed as are spring motors, yet there is a difference in speed due to the fact that when the weight is secured to a rope wound upon itself upon a drum, the rope, as the coil unwinds, acts upon what is substantially a drum of constantly decreasing size and this tends to varythe power of the motor as the weight descends. The herein described valve is therefore useful in conjunction with weight motors of this type.

From the foregoing description, it will be seen that simple and efficient means are herein provided for accomplishing the objects of the invention, but while the elements shown and described are well adapted to serve the purposes fol-which they are intended, it is'to be understood that the invention is not limited to the precise construction set forth, but includes within its purview such changes as may be made within the scope of the appended claims.

Having described my invention, what I claim is:

1. In a device of the character described the combination with an open ended sleeve, of a casing slidably mounted thereon, means carried by said sleeve and engaging a groove formed in said casing to prevent turning of said casing with relation to said sleeve, an outlet pipe leading from the port of said casing and an adjustable spring connection between said casing and said sleeve which resists sliding movement of said casing with relation to said sleeve.

2. In a device of the character described, the combination with an open ended sleeve, of a casing having a closed end slidably disposed upon said sleeve, there being registering ports formed in said casing and said sleeve, an outlet pipe leading from the said port of the casing, diametrically opposed brackets carried by the sleeve, diametrically opposed brackets carried by the casing, and adjustable spring means supported from said brackets which resist endwise movement of the casing with relation to the sleeve.

In testimony whereof I afiix my signature in presence of two witnesses.

EDWARD K. MOKINLEY,

lVitnesses:

EDITH FRANZ, LAWRENCE J. FRANZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D, C. 

